Laboratory glass wares which reacts with hydrofluoric acid, are made of the ______________ glass?

Related Mcqs:

1. Superior quality laboratory apparatus is made of the _____________ glass having low thermal co-efficient of expansion & high chemical resistance?

   A. Flint
   B. Soda
   C. Pyrex
   D. Potash

2. Coloured glass is obtained by mixing of colored salts. Addition of ___________________ oxide is done to impart greenish blue color to the glass?

   A. Chromium
   B. Arsenic
   C. Copper
   D. Manganese

3. ___________________ glass is used for the manufacture of optical glass ?

   A. Pyrex
   B. Soda
   C. Flint
   D. Crooke’s

4. Type of glass used in optical work is the ___________________ glass?

   A. Soda-lime
   B. Fibre
   C. Lead
   D. Borosilicate

5. Commonly used glass is known as the _______________ glass?

   A. Flint
   B. Hard
   C. Pyrex
   D. Soda

6. The type of high refractive index glass used in optical instruments is _____________ glass?

   A. Pyrex
   B. Flint
   C. Crookes
   D. None of these

7. ________________ acid is an unsaturated fatty acid ?

   A. Palmitic
   B. Oleic
   C. Stearic
   D. Oxalic

8. ______________ glass has the lowest co-efficient of thermal expansion and hence is more heat resistant ?

   A. Pyrex
   B. Soda lime
   C. Lead
   D. High silica

9. Blue colour is imparted to glass by the addition of__________________?

   A. FeSO4
   B. PbO
   C. CaO
   D. NaOH

10. Dense soda ash used in the manufacture of glass, is chemically represented by__________________?

    A. Na2CO3
    B. Na2CO3.10H2O
    C. Na2CO3.H2O
    D. Na2HCO3